Answer:
x=7 satisfy the equation, so it is the solution.
x=4 doesn't satisfy the equation so it is extraneous solution.
Step-by-step explanation:
The equation given is:
Adding -5 on both sides
Taking square on both sides
Now solving
Verifying solutions:
Putting x=4 in the equation
So, x=4 doesn't satisfy the equation so it is extraneous solution.
Now Putting x=7 and verifying
x=7 satisfy the equation, so it is the solution.
Answer:
80 degrees
Step-by-step explanation:
A triangle has 180 degrees so you have to add up the two angles with measurements you know (70 + 30= 100) and subtract 100 from 180
Answer:
14 2/3 or 14.6 repeting
Step-by-step explanation:
Answer:
100 packages
Step-by-step explanation:
If 5 packages out of 100 are incorrect , then there's a 1/20 chance that a package has an incorrect weight
Therefore out of 2000
it's
Hope it helps
Sorry I'm not really good at explaining
Y = -2x - 2. Slope here is -2. A parallel line will have the same slope.
y = mx + b
slope(m) = -2
(3,4)...x = 3 and y = 4
now we sub and find b, the y int
4 = -2(3) + b
4 = - 6 + b
4 + 6 = b
10 = b
so ur parallel equation is : y = -2x + 10
